Stalk feeding roll



1952 E. KQKARLSSON STALK FEEDING ROLL Original Filed Dec. 13, 1946 2 SHEETS-SHEET l 220/ Klarsm Patented Nov. 18, 1 952 .Elof 1K." Karls'sori; Molihe, llll assi'gnor to Inter'- national Harvester Gompany;. .a corporation of" Original application December 13,1946, Serial Nor 216,149.. Divided; and this application July'1-3 194 9, Serial N r 104,430 I Z CIaims. (01. 130-5 This invention relates to =anew and improvedstalk feeding roll; This application is a division of mypending application filed December 13-, 1946 and having Serial No. 716,149, now abancloned.

One of the principal objects of this invention isv the provision. of means for. moving a stalk lengthwise of the roll and simultaneouslymoving the stalk downwardly past-the roll-. I

An important object of this invention is to provide a'pair of identical cooperative snapping rolls which act to continuously elevatecorn stalks or other similar" grain lengthwise of the roll and at the same time provide-means for aggressively pulling the stalks downwardly through the pair of rolls.

Another important object of this invention is to provide a snapping-roll having a continuous helicoidal rib throughout the length of the roll.

A further object of this invention is to provide a snapping roll with a double helicoidal rib continuous throughout the length of the snapping roll.

A still further object of this invention is the provision of a snapping r011 having a helicoidal rib continuous at its apex throughout the length of the roll and having offset portions at certain points at the base of the helicoidal rib to provide for aggressive feeding of corn stalks through a pair of adjacent rolls.

Another and still further object of this invention is to provide a stalk feeding roll having a helicoidal rib with certain portions of the base thereof having oppositely extending lateral projections at similar points in the helicoidal rib along the length of the roll and havin additional lug projection members spaced from the lateral projections and combining to produce an aggressive stalk feeding roll.

Other and further important objects of this invention will become apparent from the disclosures in the following specification and accompanying drawings in which:

Fig, 1 is a top plan view of the stalk feeding roll of this invention.

Fig. 2 is an enlarged side elevational view of a portion of the roll as shown in Fig. 1.

Fig. 3 is a sectional view taken on the line 3-3 of Fig. 1.

Fig. 4 is a sectional view taken on the line 4-4 of Fig. 2.

Fi 5 is a sectional view taken on the line 55 of Fig. 2.

Fig. 6 is a, perspective view showing a surface detail of the roll having the helical rib offset on the diametral plane.

As show'n'in the "drawings, thereference nmnbe'f Ii) indicates generally" a stalkfeeding roll such as a snapping roll used oncorn pickers and'har vest'ers'. The rolllil'iszequipjp'ed withthe forward- 1y extending tapering portion I I. rolls such' as It are always used in pairs and in cornpickin'g machines the forwardly ta er ing ends I I are positioneda't' the forward end off the machine in such a manner that the rolls willr'eceive between them" corn stalksas'the' ma chine" progressesfforwardly along" the'r'ow' of" standing corn. The snapping' 'rolls as a ruleii'nf-j cline forwardly and downwardly'toward thefr'orit' of them'achine, It is thefunction o'f'a pair of adj acent snapping rolls to transport the stalks rearwardly in thecorn picking machine" anfdj simultaneously to cause the stalks' to be pulled? downwardly between the rolls-so that ears of corn on the stalk may be snapped therefrom as the stalk is being pulled through the rolls. In the present case, a double helix in the form of ribs I2 and I3 which are placed 180 apart run continuously along the length of the roll I0. As

' shown in Figures 1 and 2, the ribs I2 and I3 form smooth unbroken helicoidal surfaces throughout the apex or outer peripheral top surface of the rib.

The roll It has a semi-circular upper portion I6, and a complementary semi-circular lower portion I'i separated by a diametral plane I8. In the present device the helicoidal ribs I2 and I3 are provided with oppositely extending lateral projections I9 and 20, and 2| and 22 respectively above and below the diametral plane I3 and extending from a position beneath the top surface of the rib to the base thereof. These projections or filled in portions I9, 20, 2|, and 22 are added to the sides of the ribs I2 and I3 in such a manner that all previous undercuts associated with helicoidal ribs at the diametral plane I8 are avoided. The lateral projection I9 extends to the left of the rib I2 above the diametral plane I8 and forms a stalk engaging surface between the ribs I2 and I3 adjacent the lateral projection 22 formed on the lower half of the rib I3. Both of the projections I9 and 22 lie between the ribs I2 and I3, as do the lateral projections 20 and 2 I.

The projections I9, 20, 2|, and 22 act to cause.

aggressive downward feeding of stalks which are placed between a pair of adjacent rolls. In addition to the projections I9 to 22, there is need for additional means for positively engaging the stalk between a pair of adjacent rolls, As shown in Figures 1, 2 and 4, closely spaced vertical projections 23 and 24 are provided on one side of the ribs and relatively widely spaced projec- Stalk" feeding tions 25 and 26 are provided on the ribs on the other side thereof. All of these lugs or projections 23, 24, 25 and 26 are positioned at right angles to the diametral plane I8. The spaced lugs 23 to 26Vinclusive1y are positioned on both the top and bottom of the roll In as shown in Figures 2 and 4. These lugs provide sufficient engagement with the stalk intermediate the adjacent rolls to cause the stalks to be pulled downwardly by the rolls. In other words, the lugs bite into the stalk and pull the stalk downwardly through the space between the adjacent rolls.

Lack of all projections extending laterally from the helicoidal ribs I2 and i3 would amount to a roll not sufliciently aggressive to be conducive to good corn snapping and hence the oppositely extending lateral projections l9 to 22 inclusively on the ribs l2 and [3 along the parting plane [8, and also the vertically positioned lugs 23 to 26 inclusively are desirable for obtaining maximum success in the operation of the rolls as feeding and snapping rolls.

The end 21 of the roll I!) opposite the forwardly tapering end is provided with an open end socket portion 28 within which the forward end of a husking roll may be telescoped and a pin may be inserted through diametrically opposed and aligned apertures 29 and 30. The corn husking rolls form no part of the present invention and hence are not shown herein. It should be further understood that the snapping or stalk feeding rolls of this invention will operate entirely independent of other rolls or elements.

Many details of construction may be varied throughout a Wide range without departing from the principles disclosed herein and I therefore do not propose limiting the patent granted herein otherwise than as necessitated by the appended claims.

What is claimed is:

1. A com snapping roll of the type adapted to be used in pairs comprising an elongated roll, a rib fixed to and wound in aspiral path about the outer surface of said roll, the outer peripheral top surface of said rib forming a smooth unbroken helicoid, said roll defined in longitudinally extending halves by a diametral plane extending through the length of the roll, and projecting REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 786,239 Stone Mar. 28, 1905- 914,465 Stone Mar. 9, 1909 992,287 Stone May 16, 1911 2,041,139 Marxman May 19, 1936 2,219,483 Lukes Oct, 29, 1940 2,308,102 Paradise et a1 Jan. 12, 1943 2,315,950 Fitzlofi Apr. 6, 1943 

